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Re: [Qemu-devel] [PATCH v5 1/5] throttle: factor out duplicate code
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From: |
Greg Kurz |
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Subject: |
Re: [Qemu-devel] [PATCH v5 1/5] throttle: factor out duplicate code |
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Date: |
Tue, 20 Jun 2017 17:46:25 +0200 |
On Mon, 19 Jun 2017 09:11:32 -0400
Pradeep Jagadeesh <address@hidden> wrote:
> This patch factor out the duplicate throttle code that was present in
> block and fsdev devices.
>
> Signed-off-by: Pradeep Jagadeesh <address@hidden>
> ---
I guess this patch can be applied right away.
Cc'ing Markus (maintainer of blockdev.c)
> blockdev.c | 44 +-----------------------------------
> fsdev/qemu-fsdev-throttle.c | 43 +----------------------------------
> fsdev/qemu-fsdev-throttle.h | 1 +
> include/qemu/throttle-options.h | 4 ++++
> util/throttle.c | 50
> +++++++++++++++++++++++++++++++++++++++++
> 5 files changed, 57 insertions(+), 85 deletions(-)
>
> diff --git a/blockdev.c b/blockdev.c
> index 6472548..5db9e5c 100644
> --- a/blockdev.c
> +++ b/blockdev.c
> @@ -386,49 +386,7 @@ static void extract_common_blockdev_options(QemuOpts
> *opts, int *bdrv_flags,
> }
>
> if (throttle_cfg) {
> - throttle_config_init(throttle_cfg);
> - throttle_cfg->buckets[THROTTLE_BPS_TOTAL].avg =
> - qemu_opt_get_number(opts, "throttling.bps-total", 0);
> - throttle_cfg->buckets[THROTTLE_BPS_READ].avg =
> - qemu_opt_get_number(opts, "throttling.bps-read", 0);
> - throttle_cfg->buckets[THROTTLE_BPS_WRITE].avg =
> - qemu_opt_get_number(opts, "throttling.bps-write", 0);
> - throttle_cfg->buckets[THROTTLE_OPS_TOTAL].avg =
> - qemu_opt_get_number(opts, "throttling.iops-total", 0);
> - throttle_cfg->buckets[THROTTLE_OPS_READ].avg =
> - qemu_opt_get_number(opts, "throttling.iops-read", 0);
> - throttle_cfg->buckets[THROTTLE_OPS_WRITE].avg =
> - qemu_opt_get_number(opts, "throttling.iops-write", 0);
> -
> - throttle_cfg->buckets[THROTTLE_BPS_TOTAL].max =
> - qemu_opt_get_number(opts, "throttling.bps-total-max", 0);
> - throttle_cfg->buckets[THROTTLE_BPS_READ].max =
> - qemu_opt_get_number(opts, "throttling.bps-read-max", 0);
> - throttle_cfg->buckets[THROTTLE_BPS_WRITE].max =
> - qemu_opt_get_number(opts, "throttling.bps-write-max", 0);
> - throttle_cfg->buckets[THROTTLE_OPS_TOTAL].max =
> - qemu_opt_get_number(opts, "throttling.iops-total-max", 0);
> - throttle_cfg->buckets[THROTTLE_OPS_READ].max =
> - qemu_opt_get_number(opts, "throttling.iops-read-max", 0);
> - throttle_cfg->buckets[THROTTLE_OPS_WRITE].max =
> - qemu_opt_get_number(opts, "throttling.iops-write-max", 0);
> -
> - throttle_cfg->buckets[THROTTLE_BPS_TOTAL].burst_length =
> - qemu_opt_get_number(opts, "throttling.bps-total-max-length", 1);
> - throttle_cfg->buckets[THROTTLE_BPS_READ].burst_length =
> - qemu_opt_get_number(opts, "throttling.bps-read-max-length", 1);
> - throttle_cfg->buckets[THROTTLE_BPS_WRITE].burst_length =
> - qemu_opt_get_number(opts, "throttling.bps-write-max-length", 1);
> - throttle_cfg->buckets[THROTTLE_OPS_TOTAL].burst_length =
> - qemu_opt_get_number(opts, "throttling.iops-total-max-length", 1);
> - throttle_cfg->buckets[THROTTLE_OPS_READ].burst_length =
> - qemu_opt_get_number(opts, "throttling.iops-read-max-length", 1);
> - throttle_cfg->buckets[THROTTLE_OPS_WRITE].burst_length =
> - qemu_opt_get_number(opts, "throttling.iops-write-max-length", 1);
> -
> - throttle_cfg->op_size =
> - qemu_opt_get_number(opts, "throttling.iops-size", 0);
> -
> + throttle_parse_options(throttle_cfg, opts);
> if (!throttle_is_valid(throttle_cfg, errp)) {
> return;
> }
> diff --git a/fsdev/qemu-fsdev-throttle.c b/fsdev/qemu-fsdev-throttle.c
> index 7ae4e86..da9c225 100644
> --- a/fsdev/qemu-fsdev-throttle.c
> +++ b/fsdev/qemu-fsdev-throttle.c
> @@ -31,48 +31,7 @@ static void fsdev_throttle_write_timer_cb(void *opaque)
>
> void fsdev_throttle_parse_opts(QemuOpts *opts, FsThrottle *fst, Error **errp)
> {
> - throttle_config_init(&fst->cfg);
> - fst->cfg.buckets[THROTTLE_BPS_TOTAL].avg =
> - qemu_opt_get_number(opts, "throttling.bps-total", 0);
> - fst->cfg.buckets[THROTTLE_BPS_READ].avg =
> - qemu_opt_get_number(opts, "throttling.bps-read", 0);
> - fst->cfg.buckets[THROTTLE_BPS_WRITE].avg =
> - qemu_opt_get_number(opts, "throttling.bps-write", 0);
> - fst->cfg.buckets[THROTTLE_OPS_TOTAL].avg =
> - qemu_opt_get_number(opts, "throttling.iops-total", 0);
> - fst->cfg.buckets[THROTTLE_OPS_READ].avg =
> - qemu_opt_get_number(opts, "throttling.iops-read", 0);
> - fst->cfg.buckets[THROTTLE_OPS_WRITE].avg =
> - qemu_opt_get_number(opts, "throttling.iops-write", 0);
> -
> - fst->cfg.buckets[THROTTLE_BPS_TOTAL].max =
> - qemu_opt_get_number(opts, "throttling.bps-total-max", 0);
> - fst->cfg.buckets[THROTTLE_BPS_READ].max =
> - qemu_opt_get_number(opts, "throttling.bps-read-max", 0);
> - fst->cfg.buckets[THROTTLE_BPS_WRITE].max =
> - qemu_opt_get_number(opts, "throttling.bps-write-max", 0);
> - fst->cfg.buckets[THROTTLE_OPS_TOTAL].max =
> - qemu_opt_get_number(opts, "throttling.iops-total-max", 0);
> - fst->cfg.buckets[THROTTLE_OPS_READ].max =
> - qemu_opt_get_number(opts, "throttling.iops-read-max", 0);
> - fst->cfg.buckets[THROTTLE_OPS_WRITE].max =
> - qemu_opt_get_number(opts, "throttling.iops-write-max", 0);
> -
> - fst->cfg.buckets[THROTTLE_BPS_TOTAL].burst_length =
> - qemu_opt_get_number(opts, "throttling.bps-total-max-length", 1);
> - fst->cfg.buckets[THROTTLE_BPS_READ].burst_length =
> - qemu_opt_get_number(opts, "throttling.bps-read-max-length", 1);
> - fst->cfg.buckets[THROTTLE_BPS_WRITE].burst_length =
> - qemu_opt_get_number(opts, "throttling.bps-write-max-length", 1);
> - fst->cfg.buckets[THROTTLE_OPS_TOTAL].burst_length =
> - qemu_opt_get_number(opts, "throttling.iops-total-max-length", 1);
> - fst->cfg.buckets[THROTTLE_OPS_READ].burst_length =
> - qemu_opt_get_number(opts, "throttling.iops-read-max-length", 1);
> - fst->cfg.buckets[THROTTLE_OPS_WRITE].burst_length =
> - qemu_opt_get_number(opts, "throttling.iops-write-max-length", 1);
> - fst->cfg.op_size =
> - qemu_opt_get_number(opts, "throttling.iops-size", 0);
> -
> + throttle_parse_options(&fst->cfg, opts);
> throttle_is_valid(&fst->cfg, errp);
> }
>
> diff --git a/fsdev/qemu-fsdev-throttle.h b/fsdev/qemu-fsdev-throttle.h
> index e418643..c493e83 100644
> --- a/fsdev/qemu-fsdev-throttle.h
> +++ b/fsdev/qemu-fsdev-throttle.h
> @@ -20,6 +20,7 @@
> #include "qemu/coroutine.h"
> #include "qapi/error.h"
> #include "qemu/throttle.h"
> +#include "qemu/throttle-options.h"
>
> typedef struct FsThrottle {
> ThrottleState ts;
> diff --git a/include/qemu/throttle-options.h b/include/qemu/throttle-options.h
> index 3133d1c..565553a 100644
> --- a/include/qemu/throttle-options.h
> +++ b/include/qemu/throttle-options.h
> @@ -10,6 +10,8 @@
> #ifndef THROTTLE_OPTIONS_H
> #define THROTTLE_OPTIONS_H
>
> +#include "qemu/throttle.h"
> +
> #define THROTTLE_OPTS \
> { \
> .name = "throttling.iops-total",\
> @@ -89,4 +91,6 @@
> .help = "when limiting by iops max size of an I/O in bytes",\
> }
>
> +void throttle_parse_options(ThrottleConfig *, QemuOpts *);
> +
> #endif
> diff --git a/util/throttle.c b/util/throttle.c
> index 3570ed2..ebe9dd0 100644
> --- a/util/throttle.c
> +++ b/util/throttle.c
> @@ -514,3 +514,53 @@ void throttle_account(ThrottleState *ts, bool is_write,
> uint64_t size)
> }
> }
>
> +/* parse the throttle options
> + *
> + * @opts: qemu options
> + * @throttle_cfg: throttle configuration
> + */
> +void throttle_parse_options(ThrottleConfig *throttle_cfg, QemuOpts *opts)
> +{
> + throttle_config_init(throttle_cfg);
> + throttle_cfg->buckets[THROTTLE_BPS_TOTAL].avg =
> + qemu_opt_get_number(opts, "throttling.bps-total", 0);
> + throttle_cfg->buckets[THROTTLE_BPS_READ].avg =
> + qemu_opt_get_number(opts, "throttling.bps-read", 0);
> + throttle_cfg->buckets[THROTTLE_BPS_WRITE].avg =
> + qemu_opt_get_number(opts, "throttling.bps-write", 0);
> + throttle_cfg->buckets[THROTTLE_OPS_TOTAL].avg =
> + qemu_opt_get_number(opts, "throttling.iops-total", 0);
> + throttle_cfg->buckets[THROTTLE_OPS_READ].avg =
> + qemu_opt_get_number(opts, "throttling.iops-read", 0);
> + throttle_cfg->buckets[THROTTLE_OPS_WRITE].avg =
> + qemu_opt_get_number(opts, "throttling.iops-write", 0);
> +
> + throttle_cfg->buckets[THROTTLE_BPS_TOTAL].max =
> + qemu_opt_get_number(opts, "throttling.bps-total-max", 0);
> + throttle_cfg->buckets[THROTTLE_BPS_READ].max =
> + qemu_opt_get_number(opts, "throttling.bps-read-max", 0);
> + throttle_cfg->buckets[THROTTLE_BPS_WRITE].max =
> + qemu_opt_get_number(opts, "throttling.bps-write-max", 0);
> + throttle_cfg->buckets[THROTTLE_OPS_TOTAL].max =
> + qemu_opt_get_number(opts, "throttling.iops-total-max", 0);
> + throttle_cfg->buckets[THROTTLE_OPS_READ].max =
> + qemu_opt_get_number(opts, "throttling.iops-read-max", 0);
> + throttle_cfg->buckets[THROTTLE_OPS_WRITE].max =
> + qemu_opt_get_number(opts, "throttling.iops-write-max", 0);
> +
> + throttle_cfg->buckets[THROTTLE_BPS_TOTAL].burst_length =
> + qemu_opt_get_number(opts, "throttling.bps-total-max-length", 1);
> + throttle_cfg->buckets[THROTTLE_BPS_READ].burst_length =
> + qemu_opt_get_number(opts, "throttling.bps-read-max-length", 1);
> + throttle_cfg->buckets[THROTTLE_BPS_WRITE].burst_length =
> + qemu_opt_get_number(opts, "throttling.bps-write-max-length", 1);
> + throttle_cfg->buckets[THROTTLE_OPS_TOTAL].burst_length =
> + qemu_opt_get_number(opts, "throttling.iops-total-max-length", 1);
> + throttle_cfg->buckets[THROTTLE_OPS_READ].burst_length =
> + qemu_opt_get_number(opts, "throttling.iops-read-max-length", 1);
> + throttle_cfg->buckets[THROTTLE_OPS_WRITE].burst_length =
> + qemu_opt_get_number(opts, "throttling.iops-write-max-length", 1);
> +
> + throttle_cfg->op_size =
> + qemu_opt_get_number(opts, "throttling.iops-size", 0);
> +}
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